Vulnerability Details : CVE-2018-18764
Potential exploit
An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.
Vulnerability category: Denial of serviceInformation leak
Products affected by CVE-2018-18764
- cpe:2.3:a:cesanta:mongoose:6.13:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-18764
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 56 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-18764
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:P |
10.0
|
4.9
|
NIST | |
|
9.1
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2018-18764
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-18764
-
https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow1.md
PoCbyMyself/Cesanta Mongoose MQTT getu16 heap buffer overflow1.md at master · TiffanyBlue/PoCbyMyself · GitHubExploit;Third Party Advisory
-
https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow2.md
PoCbyMyself/Cesanta Mongoose MQTT getu16 heap buffer overflow2.md at master · TiffanyBlue/PoCbyMyself · GitHubExploit;Third Party Advisory
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